OEM China Suppliers Double Flange Butterfly Valve EPDM Seat - OEM/ODM Factory for DN40-DN2000 Sizes Suppliers, Factory

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Type: Concentric Resilient Seated

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Series: D41X

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Size: DN40-DN2000/2–80

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Pressure Rating: PN6/PN10/PN16/5K/10K/150LB

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Design Standard: EN 593

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Service: OEM & ODM

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Discover high-quality soft sealed flange butterfly valves from a reliable China factory. Our valves are designed for easy connection to pipelines using bolts and are perfect for controlling fluid flow and on/off operations. As leading suppliers in the industry, we ensure that our butterfly valves meet the highest standards and are suitable for various applications. Choose our products for durability and performance.

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Product Description

📊 Product Specifications
Valve Type Flange butterfly valve Structure Concentric
Standard EN593 Workmanship Investment casting
Sealing direction Bidirectional Sealing grade Zero leakage
Temperature -20°C < T < 120°C Operation Handle/Lever
Flange butterfly valve feature
  • Thick shell, heavy-type
  • High purity rubber, high wear resistance
  • Zero leakage standard
  • Various size in stock
🛠 Characteristics

Flanged butterfly valves distinguish themselves as a highly versatile fluid control solution, uniting cutting-edge structural design, exceptional operational efficiency, and uncompromising reliability across countless industrial scenarios. Their unique design fuses the key advantages of flanged end connections—robust installation and high-pressure capability—with the natural benefits of butterfly valve mechanics, including space-saving compactness and swift quarter-turn operation.

Valve Characteristics
Key Advantages

1 Simple structure, low cost

Few components, simple processing and assembly technology, and simple structure means easy to understand and maintain.

2 Excellent sealing

Under low pressure and normal temperature conditions, soft seals can achieve zero leakage (ANSI Class VI).

3 High flow capacity

Extremely low flow resistance. The butterfly plate causes very little pressure drop, making it ideal for water treatment and HVAC systems.

4 Compact design

Small size and light weight allow for easy installation compared to traditional gate or globe valves.

📦 Professional Packing

Standard export wooden case packaging: We ensure all valves are secured and protected against moisture and physical damage during transit.

Valve Packing
🏢 Application Scenarios

Flanged butterfly valves are universally acclaimed for their compact configuration and cost-efficiency. They are widely used in bolted fixation systems to ensure consistent and reliable performance across both low and high-pressure operating conditions.

Application 1
Application 2
Application 3
Frequently Asked Questions
Q What is a flanged butterfly valve and how does it differ from a wafer type?
A flanged butterfly valve features integrated flanges on both ends, allowing it to be bolted directly to pipe flanges. This provides a more secure, self-supporting connection compared to a wafer type, making it better suited for high-pressure applications.
Q What sealing grade does this valve achieve?
This valve achieves a zero leakage sealing grade, equivalent to ANSI Class VI. The soft-seal design ensures bidirectional sealing performance under normal temperature and medium pressure conditions.
Q What is the operating temperature range?
This flanged butterfly valve is designed to operate within a temperature range of -20°C to 120°C, suitable for most industrial fluid control applications including water and HVAC systems.
Q Which industries commonly use these valves?
They are widely used in water treatment, HVAC systems, fire protection, chemical processing, power generation, and general industrial pipelines due to their compact size and reliable sealing.
Q What standard does this valve comply with?
This valve is manufactured in compliance with the EN593 standard, the European standard for industrial butterfly valves, ensuring international quality and performance requirements.
Q Can this valve be automated?
Yes. While this version is operated via handle or lever for quick quarter-turn action, the valve body is compatible with pneumatic or electric actuators for seamless integration into automated systems.

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